I've been reading about an issues related to the fun AVcodec maybe caused by Samsung PC studio software and windows media player not working well together, but this is just one instance that I found.. The suggestion was to remove samsung PC studio.

However, while searching for FUN_AVCODEC.DLL, on othe forums, I turned up half a dozen or so questions and responses, mostly related to a BAD download with spyware/malware/viruses, all had the "fun_avcodec.dll" in their hijack this logs, and some of the helpers were suggesting to remove the files associated with this codec.. So, other than using the PC studio uninstall, or add-remove programs /Samsung PC studio, another suggestion is to vissit our spyware central, read the sticky read me before posting a request for help.

If you have issues with your system, maybe it's acting slower than it used to, or you can't open certain websites, follow PhilliePhan's instructions, then post the requested logs.